This seven-storey space was made possible by the tower's unusual structure, laid out on the facade in typical Rogers fashion.
When the conference guests emerge for a break, they are catered for in the seven-storey space of the machine hall.
England's most popular library is the Norfolk & Norwich Millennium, a multi-storey space in a sparkly new building with a restaurant and gallery, which lured nearly 1.5m people last year.
But its sorry state is set to improve with the help of visionary architects Moritz Gruppe which have acquired the old theatre and intend to restore the three-storey space into studios, performance and exhibition venues.
Tracey Emin's plans to knock down a listed 1920s building to erect a modern five-storey space for her to live and work face being dashed in the latest round of an increasingly bitter planning battle.
Officially open since last autumn, Mammal is run by Chris Yonker (a member of local band Hello Ocho) and Brian Egan, who both live in the three-storey space, its exterior splashed with murals from mayor-backed arts initiative Elevate (see above).
Stepping up across the three-storey space in what resembles a pile of glass-walled Portakabins, they climb progressively as the prices rise: from the Sky Pod bar, which enjoys the expansive freedom of the lower terrace, to the "accessible" Darwin brasserie, to the "refined dining experience" of the Fenchurch grill at the top.
The company boardroom was a grandiloquent two-storey space reminding me (on the only occasion I peeped into it) of a mediaeval banqueting hall.
Opened in April 2012 and being touted as the world's first football-themed hotel, the 85-room, 17-storey space pays homage to the Boca Juniors and their iconic stadium La Bombonera, with team-influenced design elements running throughout the luxurious interior.
Visitors to the 17th century Ashmolean enter via a six-storey atrium awash with natural light from a part-glazed roof, and see alternating single and double storey-spaces, with a wondrous curved staircase snaking down one wall.
One of the world's largest buildings in terms of floor space, the six towers of the complex include luxury hotel rooms and a multi-storey shopping mall.
